S-85M1AC16-H6T6S [ABLIC]
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT;
| 型号： | S-85M1AC16-H6T6S |
| 厂家： | 
ABLIC |
| 描述： | 5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT 输入元件 开关 |
| 文件： | 总28页 (文件大小：674K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
S-85M1A Series (WLP product)
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN
SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
www.ablic.com
© ABLIC Inc., 2018
Rev.1.0_00
The S-85M1A Series introduces own distinctive low power consumption control and COT (Constant On-Time) control and
features ultra low current consumption and fast transient response. PWM / PFM switching control automatically switches to
PFM control when under light load, and the IC operates at ultra low current consumption of 260 nA quiescent current. The
S-85M1A Series realizes high efficiency in a wide range of load current consumption and provides strong support for
extended period operation of mobile devices and wearable devices which are equipped with compact batteries.
In addition, WLP-6L package suitable for high-density mounting is adopted, it contributes to miniaturization of electronic
equipment. By using external parts recommended in this datasheet, the occupancy area can be reduced to
2.0 mm × 3.3 mm = 6.6 mm2.
Since the S-85M1A Series suppressing EMI emission minimally, allows for high efficiency, it is adequate for applications
such as wireless communication, GPS and other noise-affected devices.
Features
Applications
• Ultra low current consumption:
• Efficiency (when under 100 μA load):
• Fast transient response:
• Input voltage:
260 nA quiescent current
90.5%
COT control
• Wearable device
• Bluetooth device
• Wireless sensor network device
• Healthcare equipment
• Smart meter
• Portable game device
• GPS device
2.2 V to 5.6 V
• Output voltage:
0.7 V to 2.5 V, in 0.05 V step
2.6 V to 3.9 V, in 0.1 V step
1.5% (1.0 V ≤ VOUT ≤ 3.9 V)
15 mV (0.7 V ≤ VOUT < 1.0 V)
1.0 MHz (at PWM operation)
360 mΩ
• Output voltage accuracy:
Package
• Switching frequency:
• High side power MOS FET on-resistance:
• Low side power MOS FET on-resistance:
• Soft-start function:
• WLP-6L
250 mΩ
1 ms typ.
(1.25 mm
× 0.79 mm × t0.55 mm max.)
• Under voltage lockout function (UVLO):
• Thermal shutdown function:
1.8 V typ. (detection voltage)
135°C typ. (detection temperature)
450 mA (at L = 2.2 μH)
• Overcurrent protection function:
•
Automatic recovery type short-circuit protection function: Hiccup control
• Discharge shunt function:
Unavailable
(S-85M1A Series B type)
Available
(S-85M1A Series C type)
Ceramic capacitor compatible
Ta = −40°C to +85°C
• Input and output capacitors:
• Operation temperature range:
• Lead-free, halogen-free
Typical Application Circuit
Efficiency
VOUT(S) = 1.8 V, L = 2.2 μH, COUT = 10 μF, fSW = 1 MHz
L
100
2.2 H
V
IN
V
OUT
VIN
SW
80
V
IN = 2.5 V
IN = 3.6 V
IN = 4.2 V
C
OUT
C
IN
10 F
10 F
60
40
20
0
PVSS
EN
VOUT
V
V
VSS
0.01
0.1
1
10
100
1000
I
OUT [mA]
1
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
Block Diagrams
1. S-85M1A Series B type (Product without discharge shunt function)
C
IN
V
IN
VIN
VOUT
Ripple generation circuit
SW
Error amplifier
−
+
+
ON time generation
circuit
Output control circuit
L
VOUT
SW
UVP circuit
−
+
Reverse current
detection circuit
C
OUT
Reference voltage circuit
+
PVSS
−
EN
Soft-start cicuit
Thermal shutdown circuit
UVLO circuit
Enable
circuit
Overcurrent protection circuit
VSS
Figure 1
2. S-85M1A Series C type (Product with discharge shunt function)
C
IN
V
IN
VIN
VOUT
Ripple generation circuit
SW
Error amplifier
−
+
+
ON time generation
circuit
Output control circuit
L
VOUT
SW
UVP circuit
−
+
Reverse current
detection circuit
C
OUT
Reference voltage circuit
+
PVSS
−
EN
Soft-start cicuit
Thermal shutdown circuit
UVLO circuit
Enable
circuit
Overcurrent protection circuit
VSS
Figure 2
2
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
Product Name Structure
Users can select the product type and output voltage for the S-85M1A Series. Refer to "1. Product name"
regarding the contents of product name, "2. Package" regarding the package, "3. Product name list" regarding
details of the product name.
1. Product name
S-85M1A
x
xx
-
H6T6
S
Environmental code
S:
Lead-free, halogen-free
Package name abbreviation and packing specification*1
H6T6: WLP-6L, Tape
Output voltage*2, *3
07 to 39
(e.g., when the output voltage is 0.7 V, it is expressed as 07.)
Product type
B:
C:
Product without discharge shunt function
Product with discharge shunt function
*1. Refer to the tape drawing.
*2. Refer to "3. Product name list".
*3. In the range from 0.7 V to 2.5 V, the products which have 0.05 V step are also available.
Contact our sales office when the product is necessary.
2. Package
Table 1 Package Drawing Codes
Package Name
WLP-6L
Dimension
Tape
Reel
HL006-A-P-SD
HL006-A-C-SD
HL006-A-R-SD
3
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
3. Product name list
Table 2
Output Voltage (VOUT
0.7 V 15 mV
0.8 V 15 mV
0.9 V 15 mV
1.0 V 1.5%
1.1 V 1.5%
1.2 V 1.5%
1.3 V 1.5%
1.4 V 1.5%
1.5 V 1.5%
1.6 V 1.5%
1.7 V 1.5%
1.8 V 1.5%
1.9 V 1.5%
2.0 V 1.5%
2.1 V 1.5%
2.2 V 1.5%
2.3 V 1.5%
2.4 V 1.5%
2.5 V 1.5%
2.6 V 1.5%
2.7 V 1.5%
2.8 V 1.5%
2.9 V 1.5%
3.0 V 1.5%
3.1 V 1.5%
3.2 V 1.5%
3.3 V 1.5%
3.4 V 1.5%
3.5 V 1.5%
3.6 V 1.5%
3.7 V 1.5%
3.8 V 1.5%
3.9 V 1.5%
)
S-85M1A Series B type
S-85M1AB07-H6T6S
S-85M1AB08-H6T6S
S-85M1AB09-H6T6S
S-85M1AB10-H6T6S
S-85M1AB11-H6T6S
S-85M1AB12-H6T6S
S-85M1AB13-H6T6S
S-85M1AB14-H6T6S
S-85M1AB15-H6T6S
S-85M1AB16-H6T6S
S-85M1AB17-H6T6S
S-85M1AB18-H6T6S
S-85M1AB19-H6T6S
S-85M1AB20-H6T6S
S-85M1AB21-H6T6S
S-85M1AB22-H6T6S
S-85M1AB23-H6T6S
S-85M1AB24-H6T6S
S-85M1AB25-H6T6S
S-85M1AB26-H6T6S
S-85M1AB27-H6T6S
S-85M1AB28-H6T6S
S-85M1AB29-H6T6S
S-85M1AB30-H6T6S
S-85M1AB31-H6T6S
S-85M1AB32-H6T6S
S-85M1AB33-H6T6S
S-85M1AB34-H6T6S
S-85M1AB35-H6T6S
S-85M1AB36-H6T6S
S-85M1AB37-H6T6S
S-85M1AB38-H6T6S
S-85M1AB39-H6T6S
S-85M1A Series C type
S-85M1AC07-H6T6S
S-85M1AC08-H6T6S
S-85M1AC09-H6T6S
S-85M1AC10-H6T6S
S-85M1AC11-H6T6S
S-85M1AC12-H6T6S
S-85M1AC13-H6T6S
S-85M1AC14-H6T6S
S-85M1AC15-H6T6S
S-85M1AC16-H6T6S
S-85M1AC17-H6T6S
S-85M1AC18-H6T6S
S-85M1AC19-H6T6S
S-85M1AC20-H6T6S
S-85M1AC21-H6T6S
S-85M1AC22-H6T6S
S-85M1AC23-H6T6S
S-85M1AC24-H6T6S
S-85M1AC25-H6T6S
S-85M1AC26-H6T6S
S-85M1AC27-H6T6S
S-85M1AC28-H6T6S
S-85M1AC29-H6T6S
S-85M1AC30-H6T6S
S-85M1AC31-H6T6S
S-85M1AC32-H6T6S
S-85M1AC33-H6T6S
S-85M1AC34-H6T6S
S-85M1AC35-H6T6S
S-85M1AC36-H6T6S
S-85M1AC37-H6T6S
S-85M1AC38-H6T6S
S-85M1AC39-H6T6S
Remark Please contact our sales office for products with specifications other than the above.
4
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
Pin Configuration
1. WLP-6L
Table 3
Pin No.
A1
Symbol
EN
Description
Enable pin
Bottom view
"H"
"L"
: Enable (normal operation)
: Disable (standby)
A2 A1
B2 B1
C2 C1
B1
C1
A2
B2
C2
VIN
Power supply pin
Power GND pin
PVSS
VOUT
VSS
SW
Output voltage pin
GND pin
External inductor connection pin
Figure 3
5
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
Absolute Maximum Ratings
Table 4
(Unless otherwise specified: Ta = +25°C, VSS = 0 V)
Item
VIN pin voltage
Symbol
Absolute Maximum Rating
Unit
V
VIN
VSS − 0.3 to VSS + 6.0
EN pin voltage
VEN
VOUT
VSW
VSS − 0.3 to VIN + 0.3 ≤ VSS + 6.0
VSS − 0.3 to VIN + 0.3 ≤ VSS + 6.0
VSS − 0.3 to VIN + 0.3 ≤ VSS + 6.0
VSS − 0.3 to VSS + 0.3 ≤ VSS + 6.0
−40 to +85
V
VOUT pin voltage
SW pin voltage
V
V
PVSS pin voltage
Operation temperature
Storage temperature
VPVSS
Topr
V
°C
°C
Tstg
−40 to +125
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
6
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
Electrical Characteristics
Table 5
(VIN = 3.6 V*1, Ta = +25°C unless otherwise specified)
Item
Symbol
VIN
Condition
Min.
Typ.
3.6
Max.
Unit
V
Operating input voltage
−
2.2
5.6
VOUT(S)
× 0.985
VOUT(S)
− 0.015
VOUT(S)
× 1.015
VOUT(S)
+ 0.015
1.0 V ≤ VOUT ≤ 3.9 V, no external parts
0.7 V ≤ VOUT < 1.0 V, no external parts
VEN = 0 V
VOUT(S)
VOUT(S)
1
V
V
Output voltage*2
VOUT
Current consumption
during shutdown
ISSS
ISS1
−
−
100
nA
nA
Current consumption
during switching off
High level input voltage
Low level input voltage
High level input current
Low level input current
High side power
MOS FET on-resistance
Low side power
MOS FET on-resistance
High side power
VOUT = VOUT(S) + 0.1 V, VEN = VIN,
no external parts, no switching operation
260
500
VSH
VSL
ISH
VIN = 2.2 V to 5.5 V, EN pin
1.1
−
−100
−100
−
−
−
−
−
V
V
VIN = 2.2 V to 5.5 V, EN pin
0.3
100
100
VIN = 2.2 V to 5.5 V, EN pin, VEN = VIN
VIN = 2.2 V to 5.5 V, EN pin, VEN = 0 V
nA
nA
ISL
RHFET
RLFET
IHSW
ISW = 100 mA
−
−
−
360
250
1
−
−
mΩ
mΩ
nA
ISW = −100 mA
VIN = 2.2 V to 5.5 V, VEN = 0 V, VSW = 0 V
VIN = 2.2 V to 5.5V, VEN = 0 V, VSW = VIN
100
MOS FET leakage current
Low side power
MOS FET leakage current
Current limit*3
ILSW
−100
−
1
−
−
nA
ILIM
L = 2.2 μH
450
tON(S)
mA
tON(S) = 1/fSW*5 × VOUT/VIN,
VOUT = VOUT(S) × 0.9
−
ON time*4
tON
t
ON(S)/1.3
tON(S)/0.7 ns
Minimum OFF time
tOFF(MIN)
−
1.7
100
1.8
−
1.9
ns
V
UVLO detection voltage
UVLO release voltage
VUVLO
VUVLO
When VIN falls
−
+
When VIN rises
1.9
2.0
2.1
V
VOUT(S)
× 0.7
1.5
UVP detection voltage
Soft-start wait time
Soft-start time
VUVP
tSSW
tSS
−
−
−
−
−
−
−
V
Time until VOUT starts rising
Time until VOUT reaches 90% after it
starts rising
ms
ms
1.0
135
115
160
Thermal shutdown
detection temperature
Thermal shutdown
release temperature
Discharge shunt resistance
during power-off
TSD
Junction temperature
−
−
−
−
−
−
°C
°C
Ω
TSR
Junction temperature
RLOW
VOUT = 0.1 V, VEN = 0 V, C type
*1. VIN = VOUT(S) + 1.0 V (VOUT(S) ≥ 2.6 V)
*2. VOUT: Actual output voltage
VOUT(S): Set output voltage
*3. The current limit changes according to the L value for the inductor to be used, input voltage, and output voltage.
Refer to " Operation" for details.
*4. tON: Actual ON time
tON(S): Set ON time
*5. fSW: Switching frequency (1 MHz)
7
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
Operation
1. Fast transient response
Distinctive COT (Constant On-Time) control is used for DC-DC converter control.
The S-85M1A Series monitors the output voltage (VOUT) using a comparator and if VOUT falls below the targeted
value, the high side power MOS FET will turn on for a certain amount of time. Since the high side power MOS FET
turns on and VOUT rises immediately after the load current fluctuates rapidly and VOUT falls, the fast transient
response is realized.
The S-85M1A Series outputs ON time in proportion to VOUT and in inverse proportion to power supply voltage.
Therefore, when in continuous mode, even if the power supply voltage or VOUT settings would change, it always
operates at a quasi-fixed frequency of 1 MHz.
2. PWM / PFM switching control
The S-85M1A Series automatically switches between the pulse width modulation method (PWM) and pulse
frequency modulation method (PFM) according to the load current. If the output current (IOUT) is large, the IC will
operate at PWM control. If IOUT is small, the IC will operate at PFM control and skip the pulse according to the load
current. This reduces switching loss and improves efficiency when under light load.
The S-85M1A Series has a built-in reverse current detection circuit. The reverse current detection circuit monitors
the current flowing through the inductor. If the bottom of ripple current in the inductor falls to 0 mA, the high side
power MOS FET and low side power MOS FET will turn off and switching operation will stop. Switching frequency
will fall from 1.0 MHz by skipping a pulse. This means that the smaller IOUT is, the more the switching frequency (fSW
will drop, and it reduces switching loss.
)
3. Ultra low current consumption
When in discontinuous mode, the S-85M1A Series reduces current consumption to 260 nA typ. by intermittently
operating a control circuit and a protection circuit. When under light load, the high side power MOS FET and low
side power MOS FET will turn off. When switching operation stops and a certain amount of time elapses, only the
necessary circuits will operate.
Under voltage lockout function (UVLO), thermal shutdown function, current limit function, and automatic recovery
type short-circuit protection function are prepared in the S-85M1A Series, and each protection function will carry out
detection operation for a certain amount of time from when the high side power MOS FET turns on under light load.
It is thus able to realize ultra low current consumption. When under heavy load, the IC changes to continuous mode
as a result of the fact that the high side power MOS FET and low side power MOS FET turn on continuously, so all
the IC, including the protection circuits, will operate.
4. EN pin
This pin starts and stops switching operation. When the EN pin is set to "L", the operation of all internal circuits,
including the high side power MOS FET, is stopped, reducing current consumption. Current consumption increases
when a voltage of 0.3 V to VIN − 0.3 V is applied to the EN pin. When not using the EN pin, connect it to the VIN pin.
Since the EN pin is neither pulled down nor pulled up internally, do not use it in the floating status. The structure of
the EN pin is shown in Figure 4.
Table 6
EN Pin
Internal Circuit
Enable (normal operation)
Disable (standby)
VOUT Pin Voltage
*1
"H"
"L"
VOUT
"High-Z"
*1. Refer to *2 in Table 5 in " Electrical Characteristics".
VIN
EN
VSS
Figure 4
8
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
5. Discharge shunt function (S-85M1A Series C type)
The S-85M1A Series C type has a built-in discharge shunt circuit to discharge the output capacitor (COUT).
OUT is discharged as follows so that the VOUT pin voltage reaches the VSS level.
C
<1> The EN pin is set to "L" level.
<2> Switching operation is stopped, and then high side power MOS FET and low side power MOS FET are turned
off.
<3> The discharge shunt circuit is turned on.
<4> COUT discharges.
Since the S-85M1A Series B type does not have a discharge shunt circuit, the VOUT pin voltage is set to VSS level by
internal divided resistors between the VOUT pin and the VSS pin. The S-85M1A Series C type allows the VOUT pin
voltage to reach the VSS level rapidly due to the discharge shunt circuit.
VDD
L
Enable
circuit
EN
SW
COUT
Current flow
VOUT
*1
Discharge shunt circuit
: ON
VSS
*1. Parasitic diode
Figure 5
9
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
6. Under voltage lockout function (UVLO)
The S-85M1A Series has a built-in UVLO circuit to prevent the IC from malfunctioning due to a transient status at
power-on or a momentary drop in the supply voltage. When UVLO status is detected, the high side power MOS FET
and low side power MOS FET will turn off, and the SW pin will change to "High-Z". For this reason, switching
operation will stop. The soft-start function is reset if UVLO status is detected once, and is restarted by releasing the
UVLO status.
Note that the other internal circuits operate normally and the status is different from the disabled status.
Also, there is a hysteresis width for avoiding malfunctions due to generation of noise etc. in the input voltage.
7. Thermal shutdown function
The S-85M1A Series has a built-in thermal shutdown circuit to limit overheating. When the junction temperature
increases to 135°C typ., the thermal shutdown circuit becomes the detection status, and the switching operation is
stopped. When the junction temperature decreases to 115°C typ., the thermal shutdown circuit becomes the release
status, and the switching operation is restarted.
If the thermal shutdown circuit becomes the detection status due to self-heating, the switching operation is stopped
and output voltage (VOUT) decreases. For this reason, the self-heating is limited and the temperature of the IC
decreases. The thermal shutdown circuit becomes release status when the temperature of the IC decreases, and
the switching operation is restarted, thus the self-heating is generated again. Repeating this procedure makes the
waveform of VOUT into a pulse-like form. Switching operation stopping and starting can be stopped by either setting
the EN pin to "L", lowering the output current (IOUT) to reduce internal power consumption, or decreasing the ambient
temperature.
Table 7
Thermal Shutdown Circuit
Release: 115°C typ.*1
VOUT Pin Voltage
VOUT
"High-Z"
Detection: 135°C typ.*1
*1. Junction temperature
8. Overcurrent protection function
The S-85M1A Series has a built-in current limit circuit.
The overcurrent protection circuit monitors the current that flows through the low side power MOS FET and limits
current to prevent thermal destruction of the IC due to an overload, magnetic saturation in the inductor, etc.
When a current exceeding the current limit (ILIM) flows through the low side power MOS FET, the current limit circuit
operates and prohibits turning on the high side power MOS FET until the current falls below the low side current limit
(ILIMDET). If the value of the current that flows through the low side power MOS FET falls to the ILIMDET or lower, the
S-85M1A Series returns to normal operation. ILIMDET is fixed at 270 mA typ. in the IC, and ILIM will vary depending on
the external parts to be used.
The relation between ILIM, the inductor value (L), the input voltage (VIN), and the output voltage (VOUT) are shown in
the following expression.
1
(VIN
−
VOUT) × VOUT
VIN
ILIM = ILIMDET
+
×
2 × L × fSW
10
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
9. Automatic recovery type short-circuit protection function (Hiccup control)
The S-85M1A Series has a built-in automatic recovery type short-circuit protection function for Hiccup control.
Hiccup control is a method for periodically carrying out automatic recovery when the IC detects overcurrent and
stops the switching operation.
9. 1 When over load status is released
<1> Overcurrent detection
<2> Under voltage protection circuit (UVP circuit) detects a drop in the output voltage (VOUT).
<3> 220 μs elapse
<4> Switching operation stop (for 9 ms typ.)
<5> Overload status release
<6> The IC restarts, soft-start function starts.
In this case, it is unnecessary to input an external reset signal for restart.
<7> VOUT reaches VOUT(S) after 1.0 ms typ. elapses.
<1>
<5>
Overload status
Normal load status
I*1
L
I
LIMDET = 270 mA typ.
OUT = 200 mA max.
I
0 A
V
SW
0 V
VOUT(S)
VOUT
V
UVP typ.
0 V
<3>
<7>
1.0 ms typ.
220 s
9.0 ms typ.
<2>
<4>
<6>
*1. Inductor current
Figure 6
9. 2 When over load status continues
<1> Overcurrent detection
<2> The UVP circuit detects a drop in VOUT
.
<3> 220 s elapse
μ
<4> Switching operation stop (for 9 ms typ.)
<5> The IC restarts, soft-start function starts.
<6> The status returns to <2> when over load status continues after 1.25 ms typ. elapses.
<1>
Overload status
I
LIMDET = 270 mA typ.
OUT = 200 mA max.
I*1
L
I
0 A
VSW
0 V
VOUT(S)
VOUT
V
UVP typ.
0 V
<3>
<6>
<3>
220 s
9.0 ms typ.
1.25 ms typ.
220 s
9.0 ms typ.
<2>
<4>
<5>
<2>
<4>
*1. Inductor current
Figure 7
11
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
10. Pre-bias compatible soft-start function
The S-85M1A Series has a built-in pre-bias compatible soft-start circuit.
If the pre-bias compatible soft-start circuit starts when electrical charge remains in the output voltage (VOUT) as a
result of power supply restart, etc., or when VOUT is biased beforehand (pre-bias status), switching operation is
stopped until the soft-start voltage exceeds the internal feedback voltage, and then VOUT is maintained. If the
soft-start voltage exceeds the internal feedback voltage, switching operation will restart and VOUT will rise to the
output voltage setting value (VOUT(S)). This allows VOUT(S) to be reached without lowering the pre-biased VOUT
.
In soft-start circuits which are not pre-bias compatible, a large current flows as a result of the discharge of the
residual electric charge through the low side power MOS FET when switching operation starts, which could cause
damage, however in a pre-bias compatible soft-start circuit, the IC is protected from the large current when switching
operation starts, and it makes power supply design for the application circuit simpler.
In the S-85M1A Series, VOUT reaches VOUT(S) gradually due to the soft-start circuit.
In the following cases, rush current and VOUT overshoot are reduced.
• At power-on
• When the EN pin changes from "L" to "H".
• When UVLO operation is released.
• When thermal shutdown is released.
• At short-circuit recovery
In addition, the soft-start circuit operates under the following conditions.
The soft-start circuit starts operating after "H" is input to the EN pin and the soft-start wait time (tSSW) = 1.5 ms typ.
elapses. The soft-start time (tSS) is set to 1.0 ms typ.
• At power supply restart (the IC restart)
• At UVLO detection (after UVLO release)
• At thermal shutdown detection (after thermal shutdown release)
• After Hiccup control
Soft-start wait time Soft-start time
Soft-start operation during pre-bias
(tSSW
)
(tSS)
V
EN
VOUT
V
SW
Figure 8
12
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
Typical Circuit
VIN
VOUT
Ripple generation circuit
SW
VIN
Error amplifier
CIN
10 μF
−
+
+
ON time generation
circuit
Output control circuit
L
VOUT
SW
2.2 μH
UVP circuit
−
+
SS
Reverse current
COUT
detection circuit
10 μF
Reference voltage circuit
Soft-start cicuit
+
−
PVSS
EN
Thermal shutdown circuit
UVLO cicuit
Overcurrent protection circuit
VSS
Figure 9
Caution The above connection diagram and constants will not guarantee successful operation. Perform
thorough evaluation using an actual application to set the constants.
13
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
External Parts Selection
Selectable values and recommended values for external parts are shown in Table 8.
Use ceramic capacitors for CIN and COUT
.
Table 8
Output Capacitor (COUT
Item
Input Capacitor (CIN)
2.2 μF or larger
10 μF
)
Inductor (L)
Selectable value
Recommended value
4.7 μF to 100 μF
10 μF
1.5 μH to 10 μH
2.2 μH
1. Input capacitor (CIN)
CIN can lower the power supply impedance, average the input current, improve the efficiency and noise tolerance.
Select a capacitor according to the impedance of the power supply to be used. Also take into consideration the DC
bias characteristics of the capacitor to be used.
2. Output capacitor (COUT
)
COUT is used to smooth output voltage. If the capacitance is large, the overshoot and undershoot during load
transient and output ripple voltage can be improved even more. Select a proper capacitor after the sufficient
evaluation under actual conditions.
Table 9 Recommended Capacitors (CIN, COUT) List (at VOUT(S) ≤ 3.3 V)
Withstanding
Manufacturer
Part Number
Capacitance
Dimensions (L × W × H)
Voltage
6.3 V
Murata Manufacturing Co., Ltd. GRM155R60J106ME15
TDK Corporation C1608X5R0J106K080AB
Murata Manufacturing Co., Ltd. GRM185R60J106ME15
10 μF
10 μF
10 μF
1.0 mm × 0.5 mm × 0.5 mm
1.6 mm × 0.8 mm × 0.8 mm
1.6 mm × 0.8 mm × 0.5 mm
6.3 V
6.3 V
Table 10 Recommended Capacitors (CIN, COUT) List (at VOUT(S) > 3.3 V)
Withstanding
Manufacturer
TDK Corporation
Part Number
Capacitance
Dimensions (L × W × H)
Voltage
6.3 V
C1608X5R0J106K080AB
10 μF
10 μF
1.6 mm × 0.8 mm × 0.8 mm
1.6 mm × 0.8 mm × 0.5 mm
Murata Manufacturing Co., Ltd. GRM185R60J106ME15
6.3 V
3. Inductor (L)
When selecting L, note the allowable current. If a current exceeding this allowable current flows through the inductor,
magnetic saturation may occur, and there may be risks which substantially lower efficiency and damage the IC as a
result of large current.
Therefore, select an inductor so that peak current value (IPK), even during overcurrent detection, does not exceed
the allowable current.
When prioritizing the load response, select an inductor with a small L value such as 2.2 μH. When prioritizing the
efficiency, select an inductor with a large L value such as 4.7 μH. IPK is calculated using the following expression.
1
(VIN
−
VOUT) × VOUT
VIN
IPK = IOUT
+
×
2 × L × fSW
Table 11 Recommended Inductors (L) List
Rated
Current
Manufacturer
Part Number
Inductance
Dimensions (L × W × H)
ALPS ELECTRIC CO., LTD.
GLUHK2R201A
2.2 μH
2.2 μH
2.2 μH
2.2 μH
2.2 μH
2.2 μH
2.2 μH
1700 mA 2.0 mm × 1.6 mm × 1.0 mm
2000 mA 2.0 mm × 1.2 mm × 1.0 mm
Murata Manufacturing Co., Ltd.
DFE201210S-2R2M=P2
Würth Elektronik GmbH & Co. KG 74438313022
Würth Elektronik GmbH & Co. KG 74438343022
850 mA
1.6 mm × 1.6 mm × 1.0 mm
1100 mA 2.0 mm × 1.6 mm × 1.0 mm
1300 mA 2.0 mm × 1.6 mm × 0.9 mm
Murata Manufacturing Co., Ltd.
TDK Corporation
LQM2MPN2R2MGH
MLP2016G2R2M
PFL2015-222ME
850 mA
2.0 mm × 1.6 mm × 1.0 mm
Coilcraft, Inc.
1050 mA 2.2 mm × 1.45 mm × 1.5 mm
14
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
Board Layout Guidelines
Note the following cautions when determining the board layout for the S-85M1A Series.
• Place CIN as close to the VIN pin and the PVSS pin as possible.
• Make the VIN pattern and GND pattern as wide as possible.
• Place thermal vias in the GND pattern to ensure sufficient heat dissipation.
• Keep thermal vias near CIN and COUT approximately 3 mm to 4 mm away from capacitor pins.
• Large current flows through the SW pin. Make the wiring area of the pattern to be connected to the SW pin small to
minimize parasitic capacitance and emission noise.
• Do not wire the SW pin pattern under the IC.
Total size 2.0 mm × 3.3 mm = 6.6 mm2
Figure 10 Reference Board Pattern
Caution The above pattern diagram does not guarantee successful operation. Perform thorough evaluation
using the actual application to determine the pattern.
Remark Refer to the land drawing of WLP-6L and "WLP Package User's Guide".
15
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
Precautions
•
•
Mount external capacitors and inductors as close as possible to the IC, and make single GND.
Characteristic ripple voltage and spike noise occur in the IC containing switching regulators. Moreover rush current
flows at the time of a power supply injection. Because these largely depend on the inductor, the capacitor and
impedance of power supply to be used, fully check them using an actually mounted model.
•
The 10 μF capacitor connected between the VIN pin and the VSS pin is a bypass capacitor. It stabilizes the power
supply in the IC when application is used with a heavy load, and thus effectively works for stable switching
regulator operation. Allocate the bypass capacitor as close to the IC as possible, prioritized over other parts.
•
•
•
Although the IC contains a static electricity protection circuit, static electricity or voltage that exceeds the limit of
the protection circuit should not be applied.
The power dissipation of the IC greatly varies depending on the size and material of the board to be connected.
Perform sufficient evaluation using an actual application before designing.
ABLIC Inc. assumes no responsibility for the way in which this IC is used on products created using this IC or for
the specifications of that product, nor does ABLIC Inc. assume any responsibility for any infringement of patents or
copyrights by products that include this IC either in Japan or in other countries.
Precautions for WLP package
•
The side of device silicon substrate is exposed to the marking side of device package. Since this portion has lower
strength against the mechanical stress than the standard plastic package, chip, crack, etc. should be careful of the
handing of a package enough. Moreover, the exposed side of silicon has electrical potential of device substrate,
and needs to be kept out of contact with the external potential.
•
In this package, the overcoat of the resin of translucence is carried out on the side of device area. Keep it mind
that it may affect the characteristic of a device when exposed a device in the bottom of a high light source.
16
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
Characteristics (Typical Data)
1. Example of major power supply dependence characteristics (Ta = +25°C)
1. 1 Current consumption during switching off (ISS1
vs. Input voltage (VIN)
)
1. 2 Current consumption during shutdown (ISSS
vs. Input voltage (VIN)
)
500
400
300
200
100
100
80
60
40
20
0
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
IN [V]
VIN [V]
1. 3 Output voltage (VOUT) vs. Input voltage (VIN)
1. 4 Output voltage (VOUT) vs. Input voltage (VIN)
VOUT(S) = 1.2 V
VOUT(S) = 1.8 V
1.230
1.840
1.220
1.210
1.200
1.190
1.180
1.820
1.800
1.780
1.760
1.170
5.5
6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
IN [V]
VIN [V]
1. 5 Output voltage (VOUT) vs. Input voltage (VIN)
VOUT(S) = 2.5 V
2.600
2.400
2.200
2.000
1.800
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VIN [V]
1. 6 ON time (tON) vs. Input voltage (VIN)
VOUT(S) = 1.8 V
1. 7 Switching frequency (fSW) vs. Input voltage (VIN)
VOUT(S) = 1.8 V
1.0
0.8
0.6
0.4
0.2
0.0
1.4
1.2
1.0
0.8
0.6
5.5
6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0
VIN [V]
VIN [V]
17
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
1. 8 Soft-start wait time (tSSW) vs. Input voltage (VIN) 1. 9 Soft-start time (tSS) vs. Input voltage (VIN)
2.50
2.00
1.50
1.00
0.50
0.00
2.50
2.00
1.50
1.00
0.50
0.00
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
IN [V]
VIN [V]
1. 10 High side power MOS FET on-resistance (RHFET
vs. Input voltage (VIN)
)
1. 11 Low side power MOS FET on-resistance (RLFET
vs. Input voltage (VIN)
)
800
700
600
500
400
300
200
100
800
700
600
500
400
300
200
100
0
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VIN [V]
VIN [V]
1. 12 High side power MOS FET leakage current (IHSW
vs. Input voltage (VIN)
)
1. 13 Low side power MOS FET leakage current (ILSW
vs. Input voltage (VIN)
)
100
80
100
80
60
40
20
0
60
40
20
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
IN [V]
VIN [V]
1. 14 High level input voltage (VSH) vs. Input voltage (VIN)
1. 15 Low level input voltage (VSL) vs. Input voltage (VIN)
1.2
1.0
0.8
0.6
0.4
0.2
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
IN [V]
VIN [V]
18
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
2. Example of major temperature characteristics (Ta = −40°C to +85°C)
2. 1 Current consumption during switching off (ISS1
vs. Temperature (Ta)
)
2. 2 Current consumption during shutdown (ISSS
vs. Temperature (Ta)
)
500
400
200
150
VDD = 5.6 V
V
DD = 2.2 V
300
200
100
0
100
50
0
V
DD = 3.6 V
VDD = 3.6 V
V
DD = 5.6 V
VDD = 2.2 V
−
40
−
25
0
25
Ta [ C]
50
75 85
−
40
−
25
0
25
50
75 85
°
Ta [°C]
2. 3 Output voltage (VOUT) vs. Temperature (Ta)
2. 4 Output voltage (VOUT) vs. Temperature (Ta)
VOUT(S) = 1.2 V
VOUT(S) = 1.8 V
DD = 2.2 V
DD = 3.6 V
1.230
1.840
V
1.220
VDD = 5.6 V
V
DD = 2.2 V
1.820
1.800
1.780
1.760
1.210
1.200
1.190
1.180
1.170
V
V
DD = 5.6 V
VDD = 3.6 V
−
40
−
25
0
25
Ta [ C]
50
75 85
−
40
−
25
0
25
Ta [ C]
50
75 85
°
°
2. 5 Output voltage (VOUT) vs. Temperature (Ta)
VOUT(S) = 2.5 V
2.560
2.540
VDD = 5.6 V
2.520
2.500
2.480
2.460
2.440
VDD = 3.6 V
−40
−
25
0
25
Ta [ C]
50
75 85
°
2. 6 ON time (tON) vs. Temperature (Ta)
2. 7 Switching frequency (fSW) vs. Temperature (Ta)
1.2
1.4
V
DD = 2.2 V
DD = 3.6 V
1.0
0.8
0.6
0.4
0.2
0.0
1.2
VDD = 5.6 V
V
DD = 3.6 V
V
1.0
0.8
0.6
V
DD = 2.2 V
VDD = 5.6 V
−
−
−
40
−
25
0
25
Ta [°C]
50
75 85
Ta [°C]
19
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
2. 8 Soft-start wait time (tSSW) vs. Temperature (Ta)
2. 9 Soft-start time (tSS) vs. Temperature (Ta)
2.50
2.50
2.00
1.50
1.00
0.50
0.00
V
DD = 5.6 V
V
DD = 3.6 V
2.00
1.50
1.00
0.50
0.00
VDD = 2.2 V
VDD = 2.2 V
V
DD = 3.6 V
DD = 5.6 V
V
−40
−
25
0
25
Ta [°C]
50
75 85
−40 −25
0
25
Ta [°C]
50
75 85
2. 10 High side power MOS FET on-resistance (RHFET
vs. Temperature (Ta)
)
2. 11 Low side power MOS FET on-resistance (RLFET
vs. Temperature (Ta)
)
800
700
800
700
600
500
400
300
200
100
0
V
DD = 2.2 V
600
500
400
300
200
100
0
VDD = 2.2 V
VDD = 5.6 V
VDD = 3.6 V
V
DD = 3.6 V
V
DD = 5.6 V
−40 −25
0
25
Ta [°C]
50
75 85
−40 −25
0
25
50 75 85
Ta [°C]
2. 12 High side power MOS FET leakage current (IHSW
vs. Temperature (Ta)
)
2. 13 Low side power MOS FET leakage current (ILSW
vs. Temperature (Ta)
)
300
250
200
150
300
250
V
DD = 5.6 V
200
150
100
50
V
DD = 3.6 V
VDD = 5.6 V
V
DD = 3.6 V
100
50
0
V
DD = 2.2 V
V
DD = 2.2 V
0
−40 −25
0
25
50
75 85
−40 −25
0
25
50
75 85
Ta [°C]
Ta [°C]
2. 14 High level input voltage (VSH) vs. Temperature (Ta) 2. 15 Low level input voltage (VSL) vs. Temperature (Ta)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.2
1.0
0.8
0.6
0.4
0.2
0.0
V
DD = 5.6 V
V
DD = 5.6 V
V
DD = 3.6 V
50
V
DD = 3.6 V
V
DD = 2.2 V
0
V
DD = 2.2 V
−40 −25
25
75 85
−
40
−
25
0
25
Ta [°C]
50
75 85
Ta [°C]
20
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
2. 16 UVLO detection voltage (VUVLO−) vs. Temperature (Ta)
2. 17 UVLO release voltage (VUVLO+) vs. Temperature (Ta)
2.2
2.1
2.0
1.9
1.8
1.7
1.6
2.2
2.1
2.0
1.9
1.8
1.7
1.6
−40 −25
0
25
50
75 85
−40 −25
0
25
50
75 85
Ta [°C]
Ta [°C]
21
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
3. Transient response characteristics
The external parts shown in Table 12 are used in "3. Transient response characteristics".
Table 12
Element Name
Inductor
Constant
2.2 μH
10 μF
Manufacturer
Part Number
GLUHK2R201A
ALPS ELECTRIC CO., LTD.
Murata Manufacturing Co., Ltd.
Murata Manufacturing Co., Ltd.
Input capacitor
C1608X5R0J106K080AB
C1608X5R0J106K080AB
Output capacitor
10 μF
3. 1 Power-on (VOUT = 1.8 V, VIN = 0 V → 3.6 V, Ta = +25°C)
3. 1. 1 IOUT = 0.1 mA 3. 1. 2 IOUT = 200 mA
1000
900
800
700
600
500
400
300
200
100
0
1000
900
800
700
600
500
400
300
200
100
0
4
3
2
1
0
−1
−2
−3
−4
4
3
2
1
0
−1
−2
−3
−4
V
IN
V
IN
V
OUT
V
OUT
I
L
I
L
−100
−100
0
1
2
3
4
5
0
1
2
3
4
5
Time [ms]
Time [ms]
3. 2 Transient response characteristics of EN pin
(VOUT = 1.8 V, VIN = 3.6 V, VEN = 0 V → 3.6 V, Ta = +25°C)
3. 2. 1 IOUT = 0.1 mA
3. 2. 2 IOUT = 200 mA
1000
900
800
700
600
500
400
300
200
100
0
1000
900
800
700
600
500
400
300
200
100
0
4
3
2
1
0
−1
−2
−3
−4
4
3
2
1
0
−1
−2
−3
−4
V
IN
V
IN
V
OUT
V
OUT
I
L
I
L
−100
−100
0
1
2
3
4
5
0
1
2
3
4
5
Time [ms]
Time [ms]
3. 3 Power supply fluctuation (VOUT = 1.8 V, Ta = +25°C)
3. 3. 1 IOUT = 0.1 mA
3. 3. 2 IOUT = 200 mA
VIN = 3.6 V → 4.2 V → 3.6 V
VIN = 3.6 V → 4.2 V → 3.6 V
2.10
2.10
2.00
1.90
1.80
1.70
5
4
3
2
1
5
4
3
2
1
2.00
1.90
1.80
1.70
V
IN
V
IN
V
OUT
V
OUT
0
10
20
30
40
50
0
10
20
30
40
50
Time [ms]
Time [ms]
22
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
Rev.1.0_00
S-85M1A Series (WLP product)
3. 4 Load fluctuation (VOUT = 1.8 V, VIN = 3.6 V, Ta = +25°C)
3. 4. 1 IOUT = 0.1 mA → 10 mA → 0.1 mA
3. 4. 2 IOUT = 0.1 mA → 200 mA → 0.1 mA
2.00
1.95
1.90
1.85
1.80
1.75
1.70
2.00
1.95
1.90
1.85
1.80
1.75
1.70
30
20
300
200
100
10
I
OUT
I
OUT
0
0
−100
−200
−300
−10
−20
−30
V
OUT
V
OUT
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.2
0.4
0.6
0.8
1.0
Time [ms]
Time [ms]
Reference Data
The external parts shown in Table 13 are used in " Reference Data".
Table 13
Condition
<1>
Inductor (L)
GLUHK2R201A (2.2 μH)
ALPS ELECTRIC CO., LTD.
Input Capacitor (CIN)
GRM155R60J106ME15D (10 μF) GRM155R60J106ME15D (10 μF)
Murata Manufacturing Co., Ltd. Murata Manufacturing Co., Ltd.
Output Capacitor (COUT)
DFE201210S-2R2M=P2 (2.2 μH) GRM155R60J106ME15D (10 μF) GRM155R60J106ME15D (10 μF)
<2>
Murata Manufacturing Co., Ltd.
Murata Manufacturing Co., Ltd.
Murata Manufacturing Co., Ltd.
1. VOUT = 1.35 V (External parts: Condition<1>)
1. 1 Efficiency (η) vs. Output current (IOUT
)
1. 2 Output voltage (VOUT) vs. Output current (IOUT)
100
1.5
V
IN = 3.6 V
80
1.4
1.3
1.2
1.1
1.0
V
IN = 3.6 V
60
40
20
0
VIN = 5.6 V
V
IN = 5.6 V
0.001 0.01
0.1
1
10
100
0.001 0.01
0.1
1
10
100
I
OUT [mA]
IOUT [mA]
2. VOUT = 1.8 V (External parts: Condition<1>)
2. 1 Efficiency (η) vs. Output current (IOUT
)
2. 2 Output voltage (VOUT) vs. Output current (IOUT)
100
2.0
80
1.9
V
IN = 5.6 V
V
IN = 3.6 V
60
40
20
0
1.8
1.7
1.6
1.5
V
IN = 3.6 V
VIN = 5.6 V
0.001 0.01
0.1
1
10
100
0.001 0.01
0.1
1
10
100
I
OUT [mA]
IOUT [mA]
23
5.6 V INPUT, 200 mA, LOW EMI, SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT
S-85M1A Series (WLP product)
Rev.1.0_00
3. VOUT = 1.35 V (External parts: Condition<2>)
3. 1 Efficiency (η) vs. Output current (IOUT
)
3. 2 Output voltage (VOUT) vs. Output current (IOUT)
1.5
100
V
IN = 5.6 V
80
1.4
1.3
1.2
1.1
1.0
60
40
20
0
VIN = 3.6 V
V
IN = 3.6 V
VIN = 5.6 V
0.001 0.01
0.1
1
10
100
0.001 0.01
0.1
1
10
100
I
OUT [mA]
IOUT [mA]
4. VOUT = 1.8 V (External parts: Condition<2>)
4. 1 Efficiency (η) vs. Output current (IOUT
)
4. 2 Output voltage (VOUT) vs. Output current (IOUT)
100
2.0
VIN = 5.6 V
80
1.9
1.8
1.7
1.6
1.5
60
40
20
0
VIN = 3.6 V
VIN = 5.6 V
VIN = 3.6 V
0.001 0.01
0.1
1
10
100
0.001 0.01
0.1
1
10
100
I
OUT [mA]
IOUT [mA]
24
B
2
0.79±0.03
6-(ø0.17)
1
A
A
B
C
0.4
0.55 max.
S
Symbol
EN
Pin No.
A1
ø0.17±0.02
0.06 S
VIN
B1
C1
A2
B2
C2
PVSS
VOUT
VSS
SW
No. HL006-A-P-SD-1.0
WLP-6L-A-PKG Dimensions
(S-85M0A/S-85M1A)
TITLE
No.
HL006-A-P-SD-1.0
ANGLE
UNIT
mm
ABLIC Inc.
+0.1
-0
4.0±0.1
2.0±0.05
0.2
ø1.5
ø0.3
0.6
2.0±0.1
0.91
A1
C1
A2
C2
Feed direction
No. HL006-A-C-SD-2.0
WLP-6L-A-Carrier Tape
(S-85M0A/S-85M1A)
TITLE
No.
HL006-A-C-SD-2.0
ANGLE
UNIT
mm
ABLIC Inc.
+1.0
- 0.0
9.0
11.4±1.0
Enlarged drawing in the central part
ø13±0.2
(60°)
(60°)
No. HL006-A-R-SD-1.0
WLP-6L-A-Reel
(S-85M0A/S-85M1A)
TITLE
No.
HL006-A-R-SD-1.0
ANGLE
UNIT
QTY.
6,000
mm
ABLIC Inc.
Disclaimers (Handling Precautions)
1. All the information described herein (product data, specifications, figures, tables, programs, algorithms and application
circuit examples, etc.) is current as of publishing date of this document and is subject to change without notice.
2. The circuit examples and the usages described herein are for reference only, and do not guarantee the success of
any specific mass-production design.
ABLIC Inc. is not responsible for damages caused by the reasons other than the products described herein
(hereinafter "the products") or infringement of third-party intellectual property right and any other right due to the use
of the information described herein.
3. ABLIC Inc. is not responsible for damages caused by the incorrect information described herein.
4. Be careful to use the products within their specified ranges. Pay special attention to the absolute maximum ratings,
operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not responsible for damages caused by failures and / or accidents, etc. that occur due to the use of the
products outside their specified ranges.
5. When using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.
6. When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related
laws, and follow the required procedures.
7. The products must not be used or provided (exported) for the purposes of the development of weapons of mass
destruction or military use. ABLIC Inc. is not responsible for any provision (export) to those whose purpose is to
develop, manufacture, use or store nuclear, biological or chemical weapons, missiles, or other military use.
8. The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses. Do
not apply the products to the above listed devices and equipments without prior written permission by ABLIC Inc.
Especially, the products cannot be used for life support devices, devices implanted in the human body and devices
that directly affect human life, etc.
Prior consultation with our sales office is required when considering the above uses.
ABLIC Inc. is not responsible for damages caused by unauthorized or unspecified use of our products.
9. Semiconductor products may fail or malfunction with some probability.
The user of the products should therefore take responsibility to give thorough consideration to safety design including
redundancy, fire spread prevention measures, and malfunction prevention to prevent accidents causing injury or
death, fires and social damage, etc. that may ensue from the products' failure or malfunction.
The entire system must be sufficiently evaluated and applied on customer's own responsibility.
10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc.
The information described herein does not convey any license under any intellectual property rights or any other
rights belonging to ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any
part of this document described herein for the purpose of disclosing it to a third-party without the express permission
of ABLIC Inc. is strictly prohibited.
14. For more details on the information described herein, contact our sales office.
2.2-2018.06
www.ablic.com
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